Table 3.

Association of clinical variables with laboratory confirmed pertussis

	aOR	95 % CI	p
Age	0.995	0.972;1.019	0.68
Male gender	0.406	0.133;1.238	0.11
Cough	1.607	0.413;6.254	0.49
Paroxysmal Cough	7.535	1.495;37.985	0.01
Apnea	1.095	0.285;4.209	0.89
Emesis	0.616	0.128;2.959	0.54
Whoop	3.303	0.363;30.048	0.28
Absence of Fever	15.130	1.337;171.194	0.02
Rhinorrhea	undefined	undefined	-
Dyspnea	0.902	0.169;4.827	0.90
WBC >18.000 n/mm3	1.289	0.196;8.487	0.79
L >10.000 n/mm3	21.922	3.368;142.693	0.001
CRP <0.5 mg/dl	0.598	0.149;2.402	0.46
Length of symptoms before admission >5 days	3.782	1.316;10.870	0.01

WBC white blood count, L lymphocyte count, CRP C-reactive protein